I agree with what Reincarnated said "That doesn't work for me" & "I plan on following the court order/agreement". My ex did not like doing what the court ordered. I just emailed him with "please reread our agreement". It always worked. It was not threatening.
Every situation is different. I think you'd be better to do little for now. Let her do the "doing" with a lawyer. He will probably advise her it's a "no go". Why spend the $ on a fight. If she does go fwd with it - get a GOOD lawyer then.